What is the difference between a fixed and variable cost.

A) Fixed costs remain constant regardless of production levels, while variable costs change with production levels
B) Fixed costs change with production levels, while variable costs remain constant regardless of production levels
C) Fixed costs are associated with long-term investments, while variable costs are associated with short-term investments
D) Fixed costs are associated with short-term investments, while variable costs are associated with long-term investments
Answer: A) Fixed costs remain constant regardless of production levels